JP2021064588A - Luminaire - Google Patents

Abstract

To provide a luminaire that can enhance workability of assembly work.SOLUTION: A luminaire comprises a light source unit, and a frame member for holding the light source unit. The light source unit comprises a light source part, and a lens for controlling distribution of light emitted by the light source part. The frame member comprises a cylindrical reflection part expanding toward an irradiation side, and a cylindrical inner cylinder part provided along an opening edge of the reflection part, and rising toward the light source unit from an upper surface of the reflection part. While the lens is housed in a cylinder of the inner cylinder part and placed on the opening edge of the reflection part, an upper end edge is pressed by the light source part, and its position is fixed.SELECTED DRAWING: Figure 2

Description

The present invention relates to a luminaire to be attached to a mounted portion such as a ceiling.

Conventionally, a lighting fixture that is attached to a mounted portion such as a ceiling is known. For example, Patent Document 1 discloses a lighting fixture having a lighting module and a fixture main body that supports the lighting module on the back side such as a ceiling. The lighting module includes a heat sink, an LED light source, a tubular mounting plate attached to the heat sink, and a lens connected to the mounting plate and covering the periphery of the LED light source. The heat sink is provided with a protrusion that protrudes toward the instrument body. The LED light source is attached to the tip surface of the protrusion.

The mounting plate includes a first flat plate portion to which the lens is fixed, a second flat plate portion into which the protruding portion of the heat sink is fitted, and a third flat plate portion arranged between the first flat plate portion and the second flat plate portion. It is composed of a three-stage structure. An engaging groove for joining the lens is formed on the outer peripheral surface of the first flat plate portion. The lens has a lens portion formed of a curved surface, a tubular portion that rises from the outer peripheral edge of the lens portion, and a mounting portion provided on the upper surface of the tubular portion. The mounting portion has an annular side wall portion and three engaging portions formed by cutting out the side wall portion. The lens is attached to the first flat plate portion of the mounting plate by engaging the engaging portion with the engaging groove. That is, the lens is attached to the heat sink via the attachment plate.

Japanese Unexamined Patent Publication No. 2019-21504

In the lighting device of Patent Document 1, since the mounting plate having a three-stage structure is interposed between the lens and the heat sink, the structure for mounting the lens on the heat sink becomes complicated, and the assembly work requires labor and time. Further, in this lighting device, the number of members increases by the amount required for the mounting plate having a three-stage structure, and it is necessary to form a structure for engaging the lens and the mounting plate, which may increase the manufacturing cost. ..

The present invention has been made to solve the above problems, and an object of the present invention is to provide a lighting fixture capable of improving workability in assembly work.

The lighting fixture according to the present invention includes a light source unit that irradiates light and a frame member that is provided below the light source unit and holds the light source unit. The light source unit includes a light source unit that emits light. The light source unit has a lens that controls the light distribution of the emitted light, and the frame member is provided along a tubular reflecting portion that expands toward the irradiation side and an opening edge of the reflecting portion. The lens has a tubular inner cylinder portion that rises from the upper surface of the reflection portion toward the light source unit, and the lens is housed in the cylinder of the inner cylinder portion and placed on the opening edge of the reflection portion. In this state, the upper end edge is pressed against the light source portion to fix the position.

According to the luminaire of the present invention, the lens is housed in the inner cylinder portion of the frame member, and in a state of being placed on the opening edge of the reflecting portion, the upper end edge is pressed against the light source portion to fix the position. To. Therefore, the workability of the assembly work can be improved.

It is a perspective view which showed the lighting equipment which concerns on embodiment. It is a perspective view which showed the luminaire which concerns on embodiment disassembled. FIG. 5 is a perspective view showing a lighting fixture according to an embodiment in which a light source unit and a frame member are separated from each other. FIG. 5 is an explanatory diagram schematically showing a state in which a lens is housed in an inner cylinder portion of a frame member in the lighting fixture according to the embodiment. It is a top view which showed the heat sink of the luminaire which concerns on embodiment. FIG. 5 is a plan view showing a state in which the power supply device is inserted into the heat sink shown in FIG. It is a perspective view which showed the frame member of the luminaire which concerns on embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In each figure, the same or corresponding parts are designated by the same reference numerals, and the description thereof will be omitted or simplified as appropriate. In addition, the shape, size, arrangement, etc. of the configurations shown in each figure can be appropriately changed within the scope of the present invention.

Embodiment.
FIG. 1 is a perspective view showing a lighting fixture according to an embodiment. FIG. 2 is an exploded perspective view of the lighting fixture according to the embodiment. FIG. 3 is a perspective view showing the lighting equipment according to the embodiment in which the light source unit and the frame member are separated from each other. FIG. 4 is an explanatory view schematically showing a state in which the lens is housed in the inner cylinder portion of the frame member in the lighting fixture according to the embodiment. FIG. 5 is a plan view showing a heat sink of the lighting equipment according to the embodiment. FIG. 6 is a plan view showing a state in which the power supply device is inserted into the heat sink shown in FIG. In FIG. 6, the portion where the power supply device 4 is located is indicated by dots. FIG. 7 is a perspective view showing a frame member of the lighting fixture according to the embodiment.

The lighting fixture 100 shown in FIG. 1 is a downlight that is inserted into a small-diameter embedded hole formed in a mounted portion such as a ceiling. The small-diameter embedded hole is, for example, a circular hole having a diameter of about 75 mm to 85 mm. When the embedding hole is quadrangular, the diagonal length is about 75 mm to 85 mm. The luminaire 100 includes a light source unit 10 that irradiates light, and a frame member 20 that is provided below the light source unit 10 and holds the light source unit 10.

The light source unit 10 irradiates light toward a room or the like. The light source unit 10 is held by the frame member 20. As shown in FIGS. 1 and 2, the light source unit 10 includes a light source unit 1, a lens 2, a heat sink 3, a power supply device 4, and a terminal block 5.

The light source unit 1 emits light. As shown in FIGS. 2 to 4, the light source unit 1 includes a light emitting substrate 1a, a socket 1b, a light-shielding sheet 1c, and an insulating sheet 1d. The light emitting substrate 1a is a substrate on which a light emitting element is mounted. The light emitting element is, for example, a COB (Chip On Board) -LED. The socket 1b has an opening in the center and holds the light emitting substrate 1a fitted in the opening in the center. The light emitted from the light emitting element is emitted through the opening of the socket 1b. An electric wire (not shown) connected to the power supply device 4 is connected to the socket 1b. In the light source unit 1, the power supply device 4 and the light emitting substrate 1a are electrically connected via the electric wire. The light-shielding sheet 1c is provided so that the light emitted from the light-emitting element does not leak to the surroundings when it enters the lens 2. The light-shielding sheet 1c has an annular shape, and an opening edge is arranged so as to be sandwiched between the lower surface of the socket 1b and the upper edge of the lens 2. The insulating sheet 1d has a flat plate shape, is arranged between the light emitting substrate 1a and the heat sink 3, and is provided to insulate the light emitting substrate 1a and the heat sink 3.

As shown in FIGS. 2 to 4, the lens 2 has a truncated cone shape that expands toward the irradiation side. The lens 2 controls the light distribution so that the light emitted from the light emitting element is emitted in the target direction. A flange portion 2a projecting outward is provided on the bottom edge of the lens 2 on the irradiation side. An incident recess 2b is formed on the upper surface of the lens 2 to allow the light emitted from the light emitting element to enter the inside. The lens 2 is not limited to the shape shown in the figure, and may have another shape.

As shown in FIGS. 1 to 3, the heat sink 3 includes a disk-shaped base portion 30, a cylindrical tubular portion 31 rising from the upper surface of the base portion 30, and a plurality of heat sinks 3 protruding in the radial direction from the outer peripheral surface of the tubular portion 31. It has a number of fins 32 and. The heat sink 3 is formed by pressing a metal having high thermal conductivity, such as an aluminum alloy, into a casting die. The heat sink 3 releases the heat transferred from the light source unit 1 attached to the lower surface of the base unit 30 from the fins 32 into the air.

As shown in FIG. 5, the base portion 30 is formed with a connection hole 30a for attaching the light source portion 1. As shown in FIG. 2, the light source unit 1 abuts the insulating sheet 1d on the lower surface of the base portion 30, and attaches a joining member 8 such as a screw which is commonly passed through the through hole formed in the socket 1b and the insulating sheet 1d. It is screwed into the connection hole 30a and fixed to the base portion 30.

Further, as shown in FIG. 5, the base portion 30 is formed with a wire hole 30b through which an output wire (not shown) for supplying power from the power supply device 4 to the light emitting substrate 1a is passed. The electric wire hole 30b is formed in a range surrounded by the tubular portion 31. Further, the base portion 30 is formed with a mounting hole 30c for fixing the light source unit 10 to the frame member 20. The mounting hole 30c is formed on the outside of the tubular portion 31. A shaft portion of a joining member 9 such as a screw shown in FIG. 2 is passed through the mounting hole 30c. Further, as shown in FIG. 5, the base portion 30 is formed with a notched portion 30d obtained by notching a part of the outer peripheral edge.

As shown in FIG. 5, the tubular portion 31 has wavy wall surface portions 31a and 31b having a wavy shape along the circumferential direction due to curved surfaces having the same shape protruding from the inner surface side toward the outer surface side. The corrugated wall surface portions 31a and 31b are formed at two positions at intervals in the circumferential direction of the tubular portion 31 so as to be formed so as to face each other in the radial direction of the tubular portion 31. In the case of the illustrated example, two curved surfaces are formed on one corrugated wall surface portion 31a, and three curved surfaces are formed on the other corrugated wall surface portion 31b. The tubular portion 31 is provided with a non-corrugated wall surface between the corrugated wall surface portions 31a and 31b in the circumferential direction.

The wave-shaped wall surface portions 31a and 31b facing each other are formed by shifting the positions of the curved surfaces so that the tops of the waveforms do not face each other. This is to disperse the points where the outer surface of the power supply device 4 and the protruding portions inside the wavy wall surface portions 31a and 31b come into contact with each other in the circumferential direction without being biased to a part, and wave the outer surface of the power supply device 4. This is because it is evenly sandwiched between the inner side surfaces of the shape wall surface portions 31a and 31b. That is, the luminaire 100 can firmly hold the power supply device 4 inside the tubular portion 31 of the heat sink 3. As shown in FIG. 5, it is desirable, but not limited to, the corrugated wall surface portions 31a and 31b that face each other to be formed by shifting the curved surface by a semicircle.

The fins 32 are provided to dissipate heat generated from the light source unit 1. As shown in FIG. 5, the fins 32 are provided on the corrugated wall surface portions 31a and 31b. In the case of the illustrated example, as an example, five fins 32 are provided on the corrugated wall surface portion 31a having two curved surfaces, and six fins 32 are provided on the corrugated wall surface portion 31b having three curved surfaces. .. The number of fins 32 is not limited to the illustrated example.

The fins 32 have a plate shape having a surface substantially perpendicular to the upper surface of the base portion 30, and are provided at intervals in the circumferential direction of the tubular portion 31. The fins 32 are formed from the corrugated wall surface portions 31a and 31b to the outer edge portion of the base portion 30 when viewed in a plane shown in FIG. The fin 32 located at the position where the mounting hole 30c is formed is formed with a length in consideration of the joining member 9 to be inserted into the mounting hole 30c. Further, at least a part of the plurality of fins 32 protrudes outward from the top of the curved surface of the corrugated wall surface portions 31a and 31b. As a result, the fins 32 can be provided at a position as far as possible from the power supply device 4, so that the fins 32 are less likely to be affected by the heat generated by the power supply device 4, and the heat generated from the light source unit 1 is effectively externally generated. Can be released to. The number of fins 32 may be changed or the area may be changed depending on the brightness of the light source unit 1, that is, the amount of heat generated by the light source unit 1.

The power supply device 4 changes the electric power supplied from the outside via the terminal block 5 to supply the electric power to the light emitting substrate 1a of the light source unit 1. As shown in FIG. 2, the power supply device 4 has a configuration in which, for example, a tubular housing 4b is covered with a power supply board 4a to protect the power supply device 4. The housing 4b is made of, for example, resin. As shown in FIG. 6, the power supply device 4 is inserted and accommodated inside the tubular portion 31 of the heat sink 3, and the outer surface of the housing 4b comes into contact with the inner protruding portions of the corrugated wall surface portions 31a and 31b. A space for suppressing heat transferred from the heat sink 3 to the power supply device 4 is formed between the outer surface of the housing 4b and the curved surfaces of the corrugated wall surface portions 31a and 31b. By accommodating the power supply device 4 inside the tubular portion 31 of the heat sink 3, the lighting fixture 100 eliminates the need to separately place the power supply device 4, and can realize miniaturization.

Further, the power supply device 4 and the light source unit 1 are electrically connected by an output electric wire (not shown) passed through an electric wire hole 30b formed in the base unit 30. In the luminaire 100, since the power supply device 4 and the light source unit 1 are arranged so as to face each other with the base unit 30 interposed therebetween, the output electric wire can be shortened and the influence of noise can be reduced. ..

As shown in FIGS. 1 to 3, the terminal block 5 has a terminal to which an electric wire (not shown) connected to a commercial power source is connected and power is supplied from the commercial power source. The terminal block 5 supplies the electric power supplied from the commercial power source to the power supply device 4. The terminal block 5 is attached to a flat plate-shaped support member 50 fixed to the upper end surface of the tubular portion 31 of the heat sink 3 by a joining member 50a such as a screw by a joining member 5a such as a screw. The support member 50 also functions as a lid that closes the upper opening of the tubular portion 31 of the heat sink 3.

As shown in FIGS. 3 and 7, the frame member 20 has a reflector 6 that controls light distribution so that the light emitted from the light emitting element is irradiated in a target direction, and a lighting fixture 100 is attached to a ceiling or the like. It has a mounting spring 7 fixed to the portion.

The reflector 6 has a conical and tubular reflecting portion 60 extending toward the irradiation side, an annular flange portion 61 protruding in the radial direction from the outer peripheral edge of the reflecting portion 60, and an opening edge of the reflecting portion 60. A tubular inner cylinder 62 that is provided and rises from the upper surface of the reflection unit 60 toward the light source unit 10, and a tubular shape that is provided on the outer periphery of the inner cylinder 62 and rises from the upper surface of the reflection unit 60 toward the light source unit 10. It has an outer cylinder portion 63 and.

The reflecting unit 60 controls the light distribution so that the light emitted from the light emitting element is irradiated in the target direction.

The flange portion 61 abuts on the lower surface of the ceiling with the light source unit 10 inserted into the embedding hole, and covers the edge portion of the embedding hole.

As shown in FIGS. 4 and 7, the inner cylinder portion 62 is formed with an inner diameter slightly larger than the outer diameter of the flange portion 2a of the lens 2. The lens 2 of the light source unit 10 is housed in the cylinder of the inner cylinder portion 62. The lens 2 is accommodated from the upper end opening of the inner cylinder portion 62, and the flange portion 2a is placed on the opening edge of the reflecting portion 60. When the heat sink 3 of the light source unit 10 is attached to the frame member 20, the lens 2 housed in the inner cylinder portion 62 is restricted from moving by pressing the upper end edge of the incident recess 2b against the socket 1b via the light-shielding sheet 1c. , The position is fixed. Therefore, the lighting fixture 100 has a simple structure for attaching the lens 2, and the workability of the assembly work can be improved. Further, since the luminaire 100 does not need to be specially processed on the lens 2, it can be easily manufactured and can contribute to the reduction of the manufacturing cost.

Further, as shown in FIG. 7, the inner cylinder portion 62 is provided with a convex wall portion 62a that protrudes from the upper end edge toward the light source unit 10 and comes into surface contact with the outer peripheral surface of the socket 1b of the light source portion 1. As an example, the convex wall portion 62a is provided in a range of about 1/3 of the circumference of the upper end edge of the inner cylinder portion 62. The convex wall portion 62a is provided to guide the light source portion 1 to the inner cylinder portion 62 when the light source unit 10 is attached to the frame member 20. That is, when the light source unit 10 is attached to the frame member 20, the luminaire 100 can reliably press the upper end edge of the lens 2 by the light source unit 1 guided to the inner cylinder portion 62, so that the assembly work can be performed. Workability can be improved and quality can be improved.

As shown in FIG. 7, the outer cylinder portion 63 has an inner diameter larger than the inner diameter of the inner cylinder portion 62, and is provided so as to cover the outer peripheral surface of the inner cylinder portion 62. The space between the inner peripheral surface of the outer cylinder portion 63 and the outer peripheral surface of the inner cylinder portion 62 corresponds to the position of the electric wire hole 30b formed in the base portion 30. The output electric wire passed through the electric wire hole 30b of the base portion 30 is housed in the space. As a result, the luminaire 100 can protect the output electric wire from the outside and can exhibit a good-looking appearance in which the output electric wire is not exposed.

Further, as shown in FIGS. 4 and 7, the outer cylinder portion 63 has an upper end edge protruding toward the light source unit 10 from the upper end portion of the inner cylinder portion 62. The outer cylinder portion 63 is configured to support the light source unit 10 by placing the base portion 30 on the upper end edge when the light source unit 10 is attached to the frame member 20. A gap for passing an output wire is formed between the lower surface of the base portion 30 and the upper end edge of the inner cylinder portion 62. The output electric wire passed through the electric wire hole 30b of the base portion 30 is connected to the light emitting substrate 1a of the light source portion 1 through the gap. Further, by forming the gap, it is possible to prevent the output electric wire from being accidentally pinched between the base portion 30 and the inner cylinder portion 62 when the light source unit 10 is attached to the frame member 20. If the output wire is erroneously sandwiched between the base portion 30 and the inner cylinder portion 62, the work of attaching the light source unit 10 to the frame member 20 is hindered, and the output wire may be damaged.

Further, on the upper end edge of the outer cylinder portion 63, two protrusions 63b protruding inward in the radial direction are provided at intervals in the circumferential direction. The protrusion 63b is formed with an engagement hole 63c through which the shaft portion of the joining member 9 passes. The engagement hole 63c is formed at a position corresponding to the mounting hole 30c formed in the base portion 30 of the heat sink 3. That is, in the luminaire 100, the light source unit 10 is framed by bringing the lower surface of the base portion 30 of the heat sink 3 into contact with the upper end edge of the outer cylinder portion 63 and screwing the joining member 9 into the mounting holes 30c and the engaging holes 63c. It is attached to the member 20.

Further, the outer cylinder portion 63 is formed with a convex portion 63d that fits into the cutout portion 30d of the base portion 30 of the heat sink 3 at a part of the upper end edge. The cutout portion 30d of the base portion 30 and the convex portion 63d of the outer cylinder portion 63 serve as a positioning mechanism for supporting the base portion 30 on the upper end edge of the outer cylinder portion 63. That is, in the luminaire 100, when the light source unit 10 is attached to the frame member 20, the light source unit 10 can be easily positioned by fitting the convex portion 63d and the notch portion 30d, and the assembly work can be performed. Workability can be improved.

Further, as shown in FIGS. 1, 2 and 7, the outer cylinder portion 63 is provided with a mounting groove 63a on the outer surface for fitting and fixing one end of the mounting spring 7. Three mounting grooves 63a are provided at intervals in the circumferential direction.

The mounting spring 7 is made of an elastic material such as stainless steel, and is a leaf spring formed by bending a strip-shaped plate material. As shown in FIG. 7, the mounting spring 7 has a base end portion mounted on the mounting groove 63a of the outer cylinder portion 63 and projects outward in the radial direction of the outer cylinder portion 63. The mounting spring 7 has an arcuate shape so as to be convex toward the upper side when the luminaire 100 is viewed from the side surface direction. In the case of the illustrated example, three mounting springs 7 are provided at intervals in the circumferential direction of the outer cylinder portion 63.

The mounting spring 7 is elastically deformed toward the light source unit 10 and then inserted into an embedded hole formed in the ceiling or the like together with the light source unit 10. When the elastic deformation of the mounting spring 7 is released, the warping force (restoring force) generated toward the ceiling or the like causes three points of force to pull the light source unit 10 upward as a reaction. The light source unit 10 is fixed by the bending force of the mounting spring 7 and the flange portion 61 of the reflector 6 coming into contact with the ceiling or the like.

As described above, the lighting fixture 100 according to the present embodiment includes a light source unit 10 that irradiates light, and a frame member 20 that is provided below the light source unit 10 and holds the light source unit 10. .. The light source unit 10 includes a light source unit 1 that emits light, and a lens 2 that controls the light distribution of the light emitted by the light source unit 1. The frame member 20 is provided with a tubular reflecting portion 60 extending toward the irradiation side and a tubular inner cylinder that is provided along the opening edge of the reflecting portion 60 and rises from the upper surface of the reflecting portion 60 toward the light source unit 10. It has a part 62 and. The lens 2 is housed in the cylinder of the inner cylinder portion 62, and is placed on the opening edge of the reflection portion 60, and the upper end edge is pressed against the light source portion 1 to fix the position.

Therefore, since the lighting fixture 100 according to the present embodiment has a simple structure for attaching the lens 2, the workability of the assembly work can be improved, and the lens 2 does not need to be specially processed. It becomes easy and can contribute to the reduction of manufacturing cost.

Further, the light source unit 1 has a light emitting substrate 1a and a socket 1b that surrounds and holds the light emitting substrate 1a. The inner cylinder portion 62 is formed with a convex wall portion 62a that comes into surface contact with the outer peripheral surface of the socket 1b. The light source unit 1 has a configuration in which the convex wall portion 62a and the outer peripheral surface of the socket 1b are brought into surface contact with each other to be guided to the inner cylinder portion 62 and press the lens 2. Therefore, in the lighting fixture 100 according to the present embodiment, when the light source unit 10 is attached to the frame member 20, the light source portion 1 guided to the inner cylinder portion 62 can reliably press the upper end edge of the lens 2. Therefore, the workability of the assembly work can be improved and the quality can be improved.

Further, the light source unit 10 has a heat sink 3 that dissipates heat generated from the light source unit 1. The frame member 20 is provided on the outer periphery of the inner cylinder portion 62, and has a tubular outer cylinder portion 63 that rises from the upper surface of the reflection portion 60 toward the light source unit 10. The heat sink 3 has a flat plate-shaped base portion 30 to which the light source portion 1 is attached. The outer cylinder portion 63 has a configuration in which the upper end edge protrudes toward the light source unit 10 from the upper end edge of the inner cylinder portion 62, and the base portion 30 is placed and supported on the upper end edge. A gap for passing an electric wire is formed between the base portion 30 and the inner cylinder portion 62.

Therefore, in the lighting fixture 100 according to the present embodiment, for example, the output electric wire passed through the electric wire hole 30b of the base portion 30 can be connected to the light emitting substrate 1a of the light source portion 1 through the gap. Further, by forming the gap, it is possible to prevent the output electric wire from being accidentally pinched between the base portion 30 and the inner cylinder portion 62 when the light source unit 10 is attached to the frame member 20.

Further, the base portion 30 is formed with a notched portion 30d which is cut out from a part of the outer peripheral edge. The outer cylinder portion 63 is formed with a convex portion 63d that fits into the notch portion 30d at a part of the upper end edge. The cutout portion 30d and the convex portion 63d serve as a positioning mechanism for supporting the base portion 30 on the upper end edge of the outer cylinder portion 63.

Therefore, in the luminaire 100 according to the present embodiment, when the light source unit 10 is attached to the frame member 20, the light source unit 10 can be easily positioned by fitting the convex portion 63d and the notch portion 30d. It is possible to improve the workability of the assembly work.

Although the luminaire 100 has been described above based on the embodiment, the luminaire 100 is not limited to the configuration of the above-described embodiment. For example, the luminaire 100 may be attached to a portion to be attached other than the ceiling. Further, the illustrated luminaire 100 is an example and may include other components. Further, the corrugated wall surface portions 31a and 31b may be provided over the entire circumference of the tubular portion 31, or may be provided only in a part thereof. In short, the luminaire 100 includes a range of design changes and application variations normally performed by those skilled in the art within a range that does not deviate from the technical idea thereof.

1 Light source unit, 1a light emitting board, 1b socket, 1c light shielding sheet, 1d insulating sheet, 2 lens, 2a flange part, 2b incident recess, 3 heat sink, 4 power supply device, 4a power supply board, 4b housing, 5 terminal block, 5a joint Members, 6 reflectors, 7 mounting springs, 8, 9 joining members, 10 light source units, 20 frame members, 30 bases, 30a connection holes, 30b wire holes, 30c mounting holes, 30d notches, 31 cylinders, 31a, 31b corrugated wall surface, 32 fins, 50 support member, 50a joint member, 60 reflection part, 61 flange part, 62 inner cylinder part, 62a convex wall part, 63 outer cylinder part, 63a mounting groove, 63b protrusion, 63c engagement Perforated hole, 63d convex part, 100 luminaire.

Claims (4)

A light source unit that irradiates light and
A frame member provided below the light source unit and holding the light source unit is provided.
The light source unit is
A light source that emits light and
It has a lens that controls the light distribution of the light emitted by the light source unit.
The frame member
A tubular reflector that expands toward the irradiation side,
It has a tubular inner cylinder portion that is provided along the opening edge of the reflection portion and rises from the upper surface of the reflection portion toward the light source unit.
A luminaire in which the lens is housed in the cylinder of the inner cylinder portion and is placed on the opening edge of the reflection portion, and the upper end edge is pressed against the light source portion to fix the position. The light source unit has a light emitting substrate and a socket that surrounds and holds the light emitting substrate.
A convex wall portion that comes into surface contact with the outer peripheral surface of the socket is formed on a part of the upper end edge of the inner cylinder portion.
The luminaire according to claim 1, wherein the light source portion has a configuration in which the convex wall portion and the outer peripheral surface of the socket are brought into surface contact with each other to be guided to the inner cylinder portion and press the lens. The light source unit further has a heat sink that dissipates heat generated from the light source unit.
The frame member is provided on the outer periphery of the inner cylinder portion, and further has a tubular outer cylinder portion that rises from the upper surface of the reflection portion toward the light source unit.
The heat sink has a flat plate-shaped base portion to which the light source portion is attached.
The outer cylinder portion has a configuration in which the upper end edge protrudes toward the light source unit from the upper end edge of the inner cylinder portion, and the base portion is placed and supported by the upper end edge.
The lighting fixture according to claim 1 or 2, wherein a gap is formed between the base portion and the inner cylinder portion for passing an electric wire. A notch portion is formed in the base portion by cutting out a part of the outer peripheral edge.
The outer cylinder portion is formed with a convex portion that fits into the notch portion at a part of the upper end edge.
The luminaire according to claim 3, wherein the cutout portion and the convex portion serve as a positioning mechanism for supporting the base portion on the upper end edge of the outer cylinder portion.

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